Lighting fixture



Jan, 13, 1925.

J. A. COOK LIGHTING FIXTURE Filed Oct. 4, 1922 Patented Jan. 13, 1925.

UNITED- STATES Jesse A. 0001;;- or

CH'ICAGU. ILLINOIS."

LIGHTING FIXTURE.

Application filed October: 4, 1922.

To (ZZZ whom it may concern:

Be it known that-I, JrssnA. Coon, a citizen of the United States, residing at Chi cago, in the county of Cook and State of Illinois, have invented new and useful. Improvements in a Lighting Fixture,of which the following is a specification.

This invention relates generally'to supporting devices :and more particularly to a device of such'n'ature designed for use as a lightinglfixture and intended to support a shade or globe in association with the light producing element. j

The general purpose ofthe invention is the provision of a fixture ofthe sort indicated which is susceptible of-generaluse by virtue of the fact that-it adapts itself to variety: in design, manner of'support', finish and size, and one which may be manufactured economically, due to its comprising but few parts which may be easily formed and assembled with minimunr'labor.

A 'more particular object of the invention is the provision of an article of the sort specified which is adapted to form a secure mounting-forshades. or. globes of glassware or other material designed to be mounted in association with thelamp or light producing source associated with the fixture, and which at t'he same time will facilitate thefmounting and demountingof the globe or shade whenever such may be necessary or desired:

A more particular object isthe provision of an improved; construction for a' fixture having the qualifications above specifiechby virtue ofWvhich-the number of adjustments necessarylto' accomplish the mounting or demounting of the. shade or globe are reduced to a minimum and may be accomplished.-with one hand, le'avi'ngthe other hand of the op; erator free to'hold the globe or shade.

More particularly, the object of the inven tion residesin the provision .of a constructionfo'r articles of the sort indicated wherebythe necessity for globe adjusting or retaining screws is eliminated.

Other and further objects of-the invention will'be pointed out hereinafter, indicated in the appended claims, or obvious to one skilled in the art, upon an understanding of the present disclosure.

For thepurpose of this application I have elected to discloseherein a fixture .whichis demonstrative of one fashion in which the invention may be embodied, but it iszto be understood that the same is here presented Serial No. 592,223.

for the purpose of illustration merely, and,

consequently, that it is not to be accorded any construction or interpretation which might have the effect of limiting the invention which I purport to secure, short of its true and most comprehensive scope in the art.

In the drawing forming a part of this specification,

Fig. 1 is a side elevation of a fixture with a fragmentary illustration of a globe or shade mounted thereon;

Fig. 2 is a detail in the nature of a part sectional elevation and showing one adjustment of the fixture incident to the mounting or demounting of a globe or shade thereon;

F ig. 3 is a similar detail illustrating the relationship of parts upon the succeeding adjustment; and

Fig. 4 is-a detail in the nature of a fragmentary cross section illustrating certain features of the construction.

Thenature of the invention will best be understood by reference to these illustra tions in detail. By observation of the ref erence characters applied to the drawing it will'be understood that numeral 1 designates a bell or canopy'member, which I will term the body member of the fixture,. and which memberis adapted for association with a lamp support, preferably in such fashion that the latter may be housed and concealed within it. This bodydnember is also adapted forxconnec'tion to a suitable mounting, as by virtue of the connecting member 2. The body member maybe formed conveniently by'being'spun or stamped out of sheet metal and is formed at one extremity with a member 4, which I will term a globe supporting flange, whichpreferably extends about the entire perimeter of the body member, constitutingin effect an enlargement or flare at the open end thereof. Conjoined to the terminus of this outwardly flaring portion 4, throughout a portion of the peripheral extent thereof, is a globe retaining flange 5, which extends obliquely inward from the globe supporting flange at toward the longitudinal axis of the fixture. This globe rctaining flange 5 preferably terminates at a rolled bead edge 6 which gives the flange desired strength and rigidity, Formed in the body portionat the other terminus of the flange a is a ring retaining member 7 which may be formed conveniently as an upstanding. ledge or shoulder. At a convenient point on a side of the body portion opposite the retaining flange 5 is mounted the movable globe engaging member 8. This is in the form of a lever, which passes through a slot in the portion 7 so that its lower portion is exterior of the supporting flange 1 while this upper portion is within the body member. This lever member is fulcrumed on the body member at the point where it passes through the slot in the latter, and the extremity of its inner arm is movably connected to the body member by means of an arcuate pin 9 fixed in said arm and passing through an aperture in the body member and terminating externally thereof at a head 10. A coiled extension spring 11 is interposed between the head 10 and the outer surface of the body member and h'as the effect of restraining the outer end of member 8 inwardly toward the axis of the fixture. Said outer end of the adjustable member 8 terminates in an obliquely deflected portion 12 adapted to extend inwardly across the margin of the member 4: toward the longitudinal axis of the device. An adjustable memberlt in the nature of a screw may be mounted on this end portion 12.

Supported on the body member is a movable hood member having a flaring portion 15 conforming generally to the contour of the supporting flanget, which flaring portion terminates at a skirt portion 15 and accords a central aperture acconnnodating the body member. The inner marginal part of the flaring portion 15 is adapted to rest on top of the shoulder accorded by the abutment member 7 when the edge of the portion 15 is in closely encompassing association with the body member. Thereby the hood member is held against lateral movement with respect to the body member. Retaining means are provided for holding the hood member against displacement longitudinally of the body member away from the flange 1. This retaining means includes outwardly struck embossments 16 disposed at intervals on the lateral surface of the body member, which embossments are insert'able through notches 17 at the inner margin of the hood and adapted to engage over the margin of the hood member when it is rotated to move the notches 17 outof alignment with embossments 16. The hood member is provided with raised embossments 18 disposed in such relationship that one of the embossments 16 may engage between them to retain the hood member'against rotation on the body member. hen the hood menr ber is thus held on the body member it will envelope the portions 4 and 6 of the latter and will lie above the external arm of the adjustable member 8 in such relationship as to prevent the upward movement thereof. The form and relationship of the globe engaging flange 6 and the member 12 are such that they will clasp a flaring portion 19 of a globe or shade 19 inserted between them, whereby to maintain the globe or shade securely aflixed to the body member.

In the operation of the device, when it is desired to mount a globe or shade thereon, the hood member is first rotated to a position which will align the notches 17 with the embossment 16, and the side of the hood member over the member 8 is then lifted to a position illustrated in Fig. 2. The adjustable member. 8 is then swung by pressure applied to the head 10, which will compress the spring 11 and swing the outer arm of the adjustable member away from the flange 4i. elevate the contiguous portion of the hood member, as illustrated in Fig. 3, and move the portion 12 from in front of the retaining flange 5. The globe then may be inserted and shifted laterally to bring its flaring portion 19* in contact with the flange 5, whereupon, when pressure is removed from the head 10, the member 12 will be swung inward by the spring 11 into engagement with the flaring neck of the globe. The hood member then being restored to the normal position illustrated in Fig. 1, it will constitute a closed and neat envelopment of the neck of the globe and portions by which it is sustained, giving the fixture an attractive finish and constituting aclosure effec- Thiswill be effective to further tive to prevent ingress of dust. When retained in this position by the embossments 16, as above described, the hood, member will form an effective lock which will pro.-

vent movement of the adjustable member 8, and thereby prevent inadvertent detach ment of the globe. In the operation of the device in the manner just described, either for the mounting of the globe thereon or its demounting, the entire manipulation of the device may be accomplished by one hand, so that the other hand is left entirely free to handle the globe. No. adjustment of the screw 14 is necessary inthis operation, it being supplied simply for the purpose of permitting variation in the point of contact between the movable retaining member and the globe, so that any variation in the size or form of the latter may be accommodated.

It will be observed that the fixture lends itself to disposal in any position, either pendant, upright or slanting, and forms an effective support for a globe or shade in any position. Other advantages-ofthe device reside in the fact that it affords a very light structure, provides complete concealment of the lamp mounting and prevents ingress of foreign material to the globe, and the spring whichis used to control the adjustable member, because of its external disposal, is protected from heat.

I claim:

1. In a fixture, in combination, a body member adapted to support a shade, a shade retaining member on the body member, a lever fulcrumed on the body member and having a portion for engagement with the shade, a spring for swinging the lever to engage the shade, and a hood member forming an envelopment for the lever and the retaining member.

2. In a fixture, in combination, a body member, a stationary globe retaining member mounted thereon, an adjustable globe engaging member mounted 011 the body member, a spring effective thereon to retain a globe on the retaining member, means supported on the body member formovement to and from position enveloping said retaining and engaging members, and a manipulative means engageable externally of the body member for operating the movable engaging member.

3. In a fixture, in combination, a bell-like body member, a globe retaining member mounted thereon at the open end, a movable globe engaging member mounted on the body member, yielding pressure means holding said engaging member for cooperation with said retaining member, an annular collar movable on the body member to and from a position enveloping the retaining and engaging members and portions of a globe in engagement therewith, and manipulative means operable externally of the body member for adjusting the engaging member.

4. I11 a fixture, the combination of a body member, a globe retaining member thereon engageable laterally With a globe, a globe engaging member opposite the retaining member for securing a globe thereon, means for moving the engaging member from in front of the retaining member to permit lateral removal of the globe, and a hood member mounted on the body member to prevent separation of the retaining and engaging members, said hood member being movable to release the engaging member.

5. In a fixture, the combination of a body member, a globe retaining member depending thereon for lateral engagement with a globe, a globe engaging member movably mounted on the body member, yielding pressure means for moving the engaging member to secure a globe on the retaining member, and a hood member for preventing movement of the engaging member against the influence of said pressure means, said hood member being movable to free the engaging member.

In testimony whereof I have hereunto subscribed my name.

JESSE A. COOK. 

